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28520da655
This had to be done simultaneously, because the table macros do not work properly with C++ objects. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
98 lines
3 KiB
C++
98 lines
3 KiB
C++
// SPDX-License-Identifier: GPL-2.0
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#include "profile-widget/tankitem.h"
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#include "profile-widget/divecartesianaxis.h"
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#include "profile-widget/divetextitem.h"
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#include "core/dive.h"
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#include "core/event.h"
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#include "core/profile.h"
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#include <QPen>
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#include <QFontMetrics>
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static const double border = 1.0;
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TankItem::TankItem(const DiveCartesianAxis &axis, double dpr) :
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hAxis(axis),
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dpr(dpr)
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{
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QColor red(PERSIANRED1);
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QColor blue(AIR_BLUE);
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QColor yellow(NITROX_YELLOW);
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QColor green(NITROX_GREEN);
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QLinearGradient nitroxGradient(QPointF(0, 0), QPointF(0, height()));
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nitroxGradient.setColorAt(0.0, green);
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nitroxGradient.setColorAt(0.49, green);
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nitroxGradient.setColorAt(0.5, yellow);
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nitroxGradient.setColorAt(1.0, yellow);
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nitrox = nitroxGradient;
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oxygen = green;
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QLinearGradient trimixGradient(QPointF(0, 0), QPointF(0, height()));
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trimixGradient.setColorAt(0.0, green);
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trimixGradient.setColorAt(0.49, green);
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trimixGradient.setColorAt(0.5, red);
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trimixGradient.setColorAt(1.0, red);
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trimix = trimixGradient;
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air = blue;
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}
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double TankItem::height() const
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{
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return DiveTextItem::fontHeight(dpr, 1.0) + 2.0 * border * dpr;
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}
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void TankItem::createBar(int startTime, int stopTime, struct gasmix gas)
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{
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qreal x = hAxis.posAtValue(startTime);
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qreal w = hAxis.posAtValue(stopTime) - hAxis.posAtValue(startTime);
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// pick the right gradient, size, position and text
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QGraphicsRectItem *rect = new QGraphicsRectItem(x, 0, w, height(), this);
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if (gasmix_is_air(gas))
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rect->setBrush(air);
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else if (gas.he.permille)
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rect->setBrush(trimix);
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else if (gas.o2.permille == 1000)
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rect->setBrush(oxygen);
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else
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rect->setBrush(nitrox);
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rect->setPen(QPen(QBrush(), 0.0)); // get rid of the thick line around the rectangle
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rects.push_back(rect);
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DiveTextItem *label = new DiveTextItem(dpr, 1.0, Qt::AlignVCenter | Qt::AlignRight, rect);
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label->set(gasname(gas), Qt::black);
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label->setPos(x + 2.0 * dpr, height() / 2.0);
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label->setZValue(101);
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}
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void TankItem::setData(const struct dive *d, const struct divecomputer *dc, int plotStartTime, int plotEndTime)
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{
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// remove the old rectangles
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qDeleteAll(rects);
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rects.clear();
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if (!d || !dc)
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return;
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// We don't have enougth data to calculate things, quit.
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if (plotEndTime < 0 || plotEndTime <= plotStartTime)
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return;
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// Bail if there are no cylinders
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if (d->cylinders.empty())
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return;
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// start with the first gasmix and at the start of the plotted range
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event_loop loop("gaschange");
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struct gasmix gasmix = gasmix_invalid;
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const struct event *ev;
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while ((ev = loop.next(*dc)) != nullptr && ev->time.seconds <= plotStartTime)
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gasmix = get_gasmix_from_event(d, *ev);
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// work through all the gas changes and add the rectangle for each gas while it was used
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int startTime = plotStartTime;
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while (ev && (int)ev->time.seconds < plotEndTime) {
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createBar(startTime, ev->time.seconds, gasmix);
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startTime = ev->time.seconds;
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gasmix = get_gasmix_from_event(d, *ev);
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ev = loop.next(*dc);
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}
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createBar(startTime, plotEndTime, gasmix);
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}
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